In recent years, aided by the growing wealth of BH observations, studies have worked toward constraining BH natal kicks using a variety of methods and data sets. A number of studies have focused on the population of massive runaway stars with large space velocities, considering the possibility that they may have originated in binaries that were disrupted via the core collapse of their companions, possibly with the assistance of natal kicks , [1]}, [2]}, [3]}, [4]}, , [5]}.
